[Tagging] Using relations to group highways
lists at julius-net.net
Tue Jan 5 21:45:15 GMT 2010
Alex Mauer <hawke at hawkesnest.net> writes:
> On 01/05/2010 01:32 PM, John Smith wrote:
>> Currently there is discussion on using relations to group segments of
>> a highway occurring:
> In that ticket, you wrote: “we think administrative polygons should be
> used for custom highway shields, instead of trying to tell the rendering
> software explicitly which shield to use”
> How might this work? Presumably there’s some idea of linking
> primary/secondary/tertiary each with an administrative level, using that
> to determine which of the administrative polygons applies to the route
> in question, and then deciding from there which shield to use. Do I
> have it right?
This could be derived from the ref tag and administrative boundary.
"A 2" should get a different shield in Germany than in the UK. Same
goes for "M 5" in Michigan or UK.
The road classification is not always linked to highway type. In the
US a primary road can be a US or state highway for example and a US
highway mey be a primary, trunk or motorway.
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